We can install Yii in two ways, using Composer or downloading an archive file. The former is the preferred way as it allows you to install new extensions or update Yii by running a single command.Step 1
Install via Composer(one time only)
The installer will download composer for you and set up your PATH environment variable so you can simply call composer from any directory.Download and run Composer-Setup.exe – it will install the latest composer version whenever it is executed.and run following command
php composer [...]

Hi Developers as we always juggle with findViewById() in Android activity class . Some time we forget to typecast xml into Kotlin or java . So good news for Kotlin android developer.
Kotlin Android Extensions
Kotlin Android Extensions are another Kotlin plugin that is included in the regular one, and that will allow to recover/find views from Fragments, Activities, and Views in an effective way.see how easy it is ….Step 1.
Add Kotlin Android Extensions in Gradle (Project)
apply plugin: 'com.android.application'
apply plugin: 'kotlin-android'
apply plugin: 'kotlin-android-extensions' //this the main plugin
And [...]